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  • StreetDeck power management - can it do this?

    Can StreetDeck be made to do this: (similar to a laptop), where you can have it go to standby for a period of time (I would like 12 hours), but if it stays in standby for longer, it will automatically hibernate?

    I know you can do this for up to six hours just using the screen saver, but I would just as soon as have the ignition be able to "trigger" the process.

    Maybe have the ignition trigger the screen saver and set the options there?

    But that still only gives you up to 6 hours delay (would like longer).

    Any thoughts?

    (The purpose here is to leave it in standby most of the time, but I don't want to drain the battery if I don't drive the car one day. I have an OPUS 150 and CarNetix 1900 to play with).

  • #2
    If anyone was wondering, both the OPUS and CarNetix products attempt to protect the battery from deep discharge. There are 2 reasons this mechanism is suboptimal:

    1. IMHO, the cutoff value is set too low (10.6 V). I am not sure there's enough crank amps available by the time the voltage hits that spot. (I have an Optima 51R yellow top).

    2. Those units can only "hard" power off, losing system state. Hibernating is a much more elegant solution.

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    • #3
      I'm gonna keep talking to myself here since no one is responding. I found that the MB896 board draws very little current in S3 standby, so battery drain is probably not an issue. I do wonder now what the Carnetix will do with the deadman timer after 3 days. Just hard power off from standby?

      I mean there is no way for the CarNetix 1900 to tell the PC to gracefully shut down since the ACPI connection can just put in standby and bring it out, right?

      So I guess it would still be nice for StreetDeck to have this feature.

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      • #4
        I haven't looked into it too much, but I don't think that can be done from software. I think it requires BIOS support to goto hibernate.
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        • #5
          With my small VW battery i can go in standby for 20+ days using the MII10000 witch is porbably not a lot less then the motherboard you are using.
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          • #6
            I use the Epia M10000, and I usually leave the computer in standby using my unmodded Opus 150. I've left it alone for as long as a week and the car still started. It seemed a little sluggish turning over the first time, but it still started. I wouldn't go longer than that. In fact, I try to do a full shutdown if I know it'll be a few days (vacation, etc.). But in normal use, standby probably will not kill your battery.
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            • #7
              I found a rechargeable car starter that plugs into your cigarette lighter. I figured I'd throw one of these in my trunk. In the situation that I leave my car for too long and the battery dies, I'll just plug it in and I'm up and running. Leave it plugged in, car recharges it (or I recharge it off of AC when I get where I'm going). Just have to get a deep cycle battery so this doesn't decrease your battery's capacity... but I think the optima you mentioned is deep cycle.

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              • #8
                Originally posted by WebDog
                With my small VW battery i can go in standby for 20+ days using the MII10000 witch is porbably not a lot less then the motherboard you are using.

                I've got a VW Polo (I belive you americans call it a Rabbit?) and the battery is crap on it!

                I'm using the M1ATX and it has NEVER shut down the computer before i loose crank power.

                (I'm now always parking my car on a hill to watch Videos with freinds, so I can bumb-start it down the hill!)

                Maybe i need a better battery/alternator...

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                • #9
                  well, after you kill a battery, it never has the same capacity again- unless it was a deep cycle battery, which stock car batteries are not. You probably want to look into a new battery and make sure that it's deep cycle.

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                  • #10
                    Originally posted by amthar
                    I found a rechargeable car starter that plugs into your cigarette lighter. I figured I'd throw one of these in my trunk. In the situation that I leave my car for too long and the battery dies, I'll just plug it in and I'm up and running. Leave it plugged in, car recharges it (or I recharge it off of AC when I get where I'm going). Just have to get a deep cycle battery so this doesn't decrease your battery's capacity... but I think the optima you mentioned is deep cycle.

                    Hey amthar - that's a neat idea. I can't believe cranking amps can go through the cigarette lighter plug though! Do you have a link to something you know works well for this application.

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                    • #11
                      Originally posted by rcdash
                      Can StreetDeck be made to do this: (similar to a laptop), where you can have it go to standby for a period of time (I would like 12 hours), but if it stays in standby for longer, it will automatically hibernate?
                      I haven't tested this with SD yet, I'm having non-related issues but this used to work with my MII/Opus and DriveSoft.

                      I think you have to set a hibernate timer-tick in the Control Panel->Power Options->Power Schemes tab, and then set "When I press the power button on my computer" to Standby. For this to work the polarity of the power lead has to be correct on the Opus. Then set SD to standby on shutdown... I assume?

                      As long as SD doesn't filter/block the power requests while in standby; transition form Stdby to Hibernate should work automatically and the system should wake from standby and then hibernate after the set interval.

                      Ideally SD would veto power state transitions while active (but not idled) so that the hibernate interval could be set to around 1 hour and have hibernate attempts fails while driving but not while idled. It's already vetoing hibernation attempts while active, not sure about in standby.

                      You should also check that your system is capable of entering S3 standby (make sure that it is set in BIOS -- both the MII and MB896 allow you to select S1 or S3 as the standby power level). On XP SP2 you can see what states are available by executing powercfg -availablesleepstates from a cmd prompt. S1 is useless - although the system will wake quicker, it leaves the system for the most part powered up with fans, pci, USB etc. powered.

                      Be aware that the VIA boards apparently are intended to support wake from USB in S3 and continue to supply standby power to USB devices and this increases the amperage draw while in standby. The iBase MB896 doesn't seem to do this.

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